Les résultats au baccalauréat des deux lycées dune méne vilie sont les suivants: 2860 elleves se sont présentés et le pourcentage de réussite est $$ 60 \% $$ pour le lyce 4700 elèves se sont présentés et le pourcentage de réussite est $$ 85 \% $$ pour le hycé Calculer le pourcentage de réussite au baccalauréat des eleves de cette ville. On donnera la réponse arronciea à $$ 0,1 \% $$

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Given:
- For the first lycee:
  - Total students presented: 2860
  - Percentage of success: 60%
- For the second lycee:
  - Total students presented: 4700
  - Percentage of success: 85%

We need to calculate the overall percentage of success for the students of the city.

Let's denote:
- $$ S_1 $$ as the number of students who passed in the first lycee
- $$ S_2 $$ as the number of students who passed in the second lycee
- $$ T_1 $$ as the total number of students in the first lycee
- $$ T_2 $$ as the total number of students in the second lycee
- $$ S $$ as the total number of students who passed in the city
- $$ T $$ as the total number of students in the city

From the given information:
- $$ S_1 = 0.6 \times 2860 $$
- $$ S_2 = 0.85 \times 4700 $$
- $$ T_1 = 2860 $$
- $$ T_2 = 4700 $$

We can calculate the total number of students who passed in the city by adding the number of students who passed in each lycee:
$$ S = S_1 + S_2 $$

And the total number of students in the city by adding the total number of students in each lycee:
$$ T = T_1 + T_2 $$

Now, we can calculate the overall percentage of success for the students of the city by dividing the total number of students who passed by the total number of students in the city and multiplying by 100:
$$ \text{Overall percentage of success} = \left( \frac{S}{T} \right) \times 100 $$

Let's calculate the overall percentage of success.
Calculate the value by following steps:
- step0: Calculate:
  $$0.6\times 2860+0.85\times 4700$$
- step1: Multiply the numbers:
  $$1716+0.85\times 4700$$
- step2: Multiply the numbers:
  $$1716+3995$$
- step3: Add the numbers:
  $$5711$$
Calculate or simplify the expression $$ 2860 + 4700 $$.
Calculate the value by following steps:
- step0: Calculate:
  $$2860+4700$$
- step1: Add the numbers:
  $$7560$$
Calculate or simplify the expression $$ 5711/7560 $$.
Calculate the value by following steps:
- step0: Calculate:
  $$\frac{5711}{7560}$$
The overall percentage of success for the students of the city is approximately 75.54%.
The overall percentage of success for the students of the city is approximately 75.5%.

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